QJEEM22Ch4c4f: JEE Main 2022 Chemistry - Class 12 JEEM22Ch4c4f Solution: Which of the following has least tendency to liberate H 2 from…

Question

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Which of the following has least tendency to liberate $H_{2}$ from mineral acids?

Accepted Answer

The metal atom whose oxidation potential is less than that of hydrogen can release

\mathrm{H}_{2}

from mineral acids.

\mathrm{E}_{\mathrm{Zn} / \mathrm{Zn}^{+2}}=0.76

\mathrm{E}_{\mathrm{Ni/Ni}^{+ 2}}=0.25

E_{M n / M n^{+2}}=1.18

\mathrm{E}_{\mathrm{Cu}^{\circ} / \mathrm{Cu}^{+2}}=-0.34

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